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In my previous articles I have explained about the some of the popular annotations in Spring @Required, @Autowired and @Qualifier. You could note from these posts that we declared all the beans or components in XML bean configuration file; this helps Spring container detect and register beans or components. In this post I shall discuss [...]

In this post I shall cover the JSR250 annotations. Introduced in Spring 2.5, it added support for JSR-250 based annotations which include @Resource, @PostConstruct and @PreDestroy annotations. In my previous articles I have explained about the some of the popular annotations in Spring @Required, @Autowired and @Qualifier. Also please read about How to write Custom Spring Callback Methods? also read: follow [...]

In this post I shall cover another annotation @Qualifier which helps fine-tune annotation-based autowiring. In the previous post we saw how we could use @Autowired annotation on setter methods, fields and constructors. There may be scenarios when we create more than one bean of the same type and want to wire only one of them [...]

In my previous post I mentioned about the use of @Required annotation for container configuration. In this post I shall cover the @Autowired annotation. Introduced in Spring 2.5, the @Autowired annotation can be applied to On setter methods On Properties On Constructors @Autowired with arguments also read: follow us on @twitter and @facebook Spring Tutorials ( Collection for Spring [...]

Since Spring 2.5, annotation-based configuration has been an alternative to XML setups. Annotation based configuration rely on the bytecode metadata for wiring up components instead of angle-bracket declarations. Annotations can be used on the relevant class, method, or field declaration. Annotation injection is performed before XML injection, thus the latter configuration will override the former [...]

In the previous post Custom Spring Callback Methods I discussed about the customizing bean lifecycle callback methods which are required at the time of bean initialization and its destruction. In this post I shall cover another aspect of Spring Container Extension Points. Note:Extension Points are well defined exposed places/hooks for others to provide extended functionality. [...]

A Spring process follows bean based approach.The Spring bean is created, managed and dispensed by the Spring IoC container. Each Spring bean has a lifecycle and the lifecycle has to undergo the following stages: Instantiate – The Spring container instantiates the bean. Populate properties- Spring IoC container injects the bean’s properties. Set Bean Name- Spring [...]

In my previous posts Spring bean scopes (Singleton and Prototype) with example and Spring bean scopes (Request, Session, Global Session) with example I discussed about the bean scopes in spring. There’s one more scope which I forgot to mention, its the Thread scope. The spring documentation states that As of Spring 3.0, a thread scope [...]

When you define a bean in the configuration file, you are just defining the structure of the bean or it is just a class. With that definition, you can create any number of instances. Here the advantage of the bean is that, you are not only allowed to define the dependencies for the beans, you [...]

When you define a bean in the configuration file, you are just defining the structure of the bean or it is just a class. With that definition, you can create any number of instances. Here the advantage of the bean is that, you are not only allowed to define the dependencies for the beans, you [...]